<?php
// $Id: i18nstrings.admin.inc,v 1.1.2.6 2009/01/03 19:07:52 jareyero Exp $

/**
 * @file
 * Admin page callbacks for the i18nstrings module.
 */
function i18nstrings_admin_refresh_page() {
  include_once './includes/locale.inc';
  $output = '';
  $output .= drupal_get_form('i18nstrings_admin_refresh');
  return $output;
}

/**
 * Form callback. Refresh textgroups.
 */
function i18nstrings_admin_refresh() {
  // Select textgroup/s.
  $groups = module_invoke_all('locale', 'groups');
  unset($groups['default']);
  $form['groups'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Select text groups'),
    '#options' => $groups,
  );
  $form['refresh'] = array(
    '#type' => 'submit',
    '#value' => t('Refresh strings'),
    '#suffix' => '<p>'. t('This will create all the missing strings for the selected text groups.') .'</p>',
  );
  // Get all languages, except default language.
  $languages = locale_language_list('name', TRUE);
  unset($languages[language_default('language')]);
  $form['languages'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Select languages'),
    '#options' => $languages,
  );
  $form['update'] = array(
    '#type' => 'submit',
    '#value' => t('Update translations'),
    '#suffix' => '<p>'. t('This will fetch all existing translations from the localization tables for the selected text groups and languages.') .'</p>',
  );
  return $form;
}

/**
 * Form submission.
 */
function i18nstrings_admin_refresh_submit($form, &$form_state) {
  $op = isset($form_state['values']['op']) ? $form_state['values']['op'] : '';
  $groups = array_filter($form_state['values']['groups']);
  $languages = array_filter($form_state['values']['languages']);

  if ($op == t('Refresh strings') && $groups) {
    foreach ($groups as $group) {
      i18nstrings_refresh_group($group, TRUE);
    }
  }
  elseif ($op == t('Update translations') && $groups && $languages) {
    $count = 0;
    foreach ($languages as $language) {
      $count += i18nstrings_admin_update($language, $groups);
    }
    drupal_set_message(format_plural($count, '1 string has been updated.', '@count strings have been updated.'));
  }
}

/**
 * Update strings for language.
 */
function i18nstrings_admin_update($language, $groups) {
  $params = $groups;
  $params[] = $language;
  $sql = 'SELECT g.*, t.translation, t.lid as tlid FROM {locales_source} g INNER JOIN {locales_source} s ON g.source = s.source AND s.lid <> g.lid ';
  $sql .= 'INNER JOIN {locales_target} t ON s.lid = t.lid LEFT JOIN {locales_target} t2 ON g.lid = t2.lid ';
  $sql .= 'WHERE t2.lid IS NULL AND g.textgroup IN ('. db_placeholders($groups, 'varchar') .") AND t.language = '%s'";
  $result = db_query($sql  , $params);
  $count = 0;
  while ($string = db_fetch_object($result)) {
    $count++;
    if (!empty($string->translation)) {
      db_query("INSERT INTO {locales_target} (translation, lid, language) VALUES('%s', %d, '%s')", $string->translation, $string->lid, $language);
    }
  }
  return $count;
}
